Pointing machine



July 29 1924.

POINTING MACHINE .v lO 1922 -2 Sheets-Sheet l ixaucutuz (m1/Coax Original Filed Nov July 29. 1924. 4 A. BASKY PINTING MACHINE Original Filed Nov. 10 1922 f 2 Sheets-Sheet 2 Patented July 29, 1924.

STPS

isaaau POINTING MACHINE.

Application filed November 10, 1922, Serial No. 600,175. Renewed .Tune 4, 1924.

T0 all whom it may concern.'

Be it known that I, ANTON BAsKY, a citizen of the United States, residing at New York, in the county of New York and State,

of New York, have invented certain new and useful Improvements in Pointing Machines, of which the following is aspecitication.

This invention relates toa machine for the use pf stone, marble and wood carvers generally or sculptors and clay modelers, by means of which an exact copy, on a dit vferent scale, can be made from a'model.

The invention has for an object the provision of a novel and efficient machine of this sort, anfurther object relating specilically to the provision of means for varying the distance between the pointers, or other implements, bearing respectively on the model and on the work.

For further comprehension of the invention, and of the objects and advantages thereof, reference will be had to the following description and accompanying drawings, and to the appended claims in which the various novel features of the invention are more particularly set forth.

Fig. 1 of the drawings is a side elevation of my improved pointing machine.

Fig. 2 is a plan view, omitting the supports.

Fig.l3 is a detail transverse sectional view taken on the line 3 3 of Fig. 2.

Fig. 4 is a detail transverse sectional view taken on the line 4-4 of Fig. 2.

Fig. 5 is a detail elevational view indicating a motor actuated drill which may employ in connection with my improved machine. i y

Fig. 6 is a detail transverse elevational view illustrating the device I may employ to engage the Vtop of model and work to vhold the (same steady. i

In constructing my improved machine I provide a pair of turntables 10 and 11 respectively the former of which is comparatively small and supported on a relatively high stand 12, and is adapted to support a model M from which 'a larger image is to bereproduced.l |The turntable 11 is com- Vparativelylarge and is supported on a rela- 'tive'ly low stand 13 this'table supporting the Object 0r Work: W bains preduedf These turntables 10 and 11 are liXed on the yupper ends of vertical shafts l5 and 16 respectively, whichare journaled in the respective stands 12 and 13. These shafts are formed with double crank elements 17 joined by connecting rods 18 whereby the two turntables may be caused to rotatev in unison. Anti-friction bearings 19 may be used-to support the turntable 10, while rollers 20 may be placed under the edge of the turntable 11.

Located beyond ther small turntable 10, considered with relation to the large turntabley 11, is a hollow post 23 suitably fixed to the floor and which is adapted to support the working beam of the machine, the post being located in horizontal alinement with the two turntables,

The working beam, on which are mounted the pointers or other implements adapted to engage the model and work, is indicated at 25 and is here of hollow construction and rectangular cross section and is divided into two compartments by a longitudinal partition, the top presenting a pair of longitudinal slots 27 one on each side of this partition. In the respective compartments thus' formed are slidably located the bars 28 and 29 to which 'are iXed brackets 30 proi jecting through the slots 27 and having lined thereon the horizontal disks 31. Rotatively mounted on 'these disks 31 are other disks 32, 32 upon which are adjustably secured as by screws 33 the transverse arms 34 and 35 respectively, carrying at one end projecting pointers 36, 37 adjustably held by set screws 38.v The opposite ends of these arms 34, 35 are connected together by a telescopic link consisting 0f two sections 40,

41 one of which fits in the other and is links are .SO arranged that when. the lever 44.-

is swung the 1bars 28, 29 will be moved relative distances which will maintain the proper proportionate spacing of the pointers 3G, 37.

The working beam is supported on the post 23 by a universal joint and is also adapted for raising or lowering. As here shown the post is hollow and has slidably and rotatably fitted therein a rod 50 on whose upper end is a vertical ring 51 freely surrounding an inner ring 52 which latter is flanged over the sides of the outer ring to prevent axial displacement. The beam 25 extends through this ring 52 and is pivotally attached thereto as at 53. Rotatively mounted on the top of the post 23 is a collar 54 through which the rod 50 passes freely, a set screw 55 being threaded through this collar and bearing on the rod to Yhold the latter in vertically adjusted positions. Antifriction bearings 56 may be interposed under the collar 54 while similar anti-friction bearings (not shown) may be provided Y stituted for the disk 32.

between the rings 51 and 52. A counterbalancing weight 57 may be mounted on the beam 25.

In Fig. 5 I have shown a motor driven drill which may be substituted for the pointer to act upon the work. According to this construction a disk 34a may be sub- On this disk 34a a motor 58 is mounted and the shaft 59 thereof is provided with a chuck 60 adapted to hold the drill 6l, the disk 34a having an integral arm extension 62 to which the telescopio rod 40 is connected. Ther motor 58 may be either an electric or pneumatic motor as desired.

It is believed that the manner of use of my improved pointing machine will be readily understood from the above description. As will be apparent, the working beam may be readily reversed by rotation on its own aXis so as to project the pointers to right or left as may be desired to engage either front or back of the model and work, while the lever 44 may be swung to move the pointer along the work beam. In order to facilitate setting the pointers in parallel relation after swinging lever 44 the disks 32, 32 may have marks thereon with which the arms 34, 35 are brought into registry.

I may attach a supporting cord 70 to the beam 25, at a point between the disks 32 and 32. This cord leads upwardly around pullevs 71 on aV horizontally swinging Vbracket 72 fulcrumed as at 72 in vertical alinement with the-stand 23, the cord being attached to a counterweight 73 suitably guided for vertical movement by said Y bracket.

upper ends which are pivotally engaged as at 80 with fixed elements carried overhead, the pivot points of the arms` being alined with the shafts l5, 16. Upon the respective posts are vertically slidable other horizontal arms 8l, 82 clamped thereto by set screws 83 and carrying pointers 84 vertically alined with said shaft-sand adapted to engage the heads of the model and work.

Having thus described my invention what I claim as new and desire to protect by Letters Patent of the United States'is as follows zl. A machine of the type set forth comprising a pair of turntables vertical cranked shafts on which said turntables are mounted, connecting rods extending between said shafts whereby the latter may becaused to rotate in unison a work beam, a universal joint mounting for said work beam, a pair of pointers mounted on said work beam, and means for adjusting said pointers in unison along the work beam while maintaining their proportionate distances from the fulcrum point of the latter.

2. A machine of the type set forth comprising a pair of turntables, a post horizontally alined with said turntables, a Work beam fulcrumed on said post, a pair of pointers mounted on said work beam and means for adjusting said pointers in unison along the work beam while maintaining their proportionate distances from the fulcrum point of the latter.

3. A machine of the type set forth comprising a pair of turntables, a post horizontally alined with said turntables, a work beam fulcrumed on said post, a pair of pointers mounted on said work beam and means for adjusting said pointers in unison along the work beam while maintaining their proportionate distances from the fulcrum point of the latter, said means comprising a pair of bars slidable in said work beam, a lever fulcrumed to said work beam, and a pair of links connected at one end to said lever at relatively different distances from its fulcrum point and at opposite ends to said bars.

4. A machine of the type set forth comprising a pair of turntables, a post horizontally alined with said turntables, a hollow work beam supported on said post by a universal joint, a pair of bars slidable in said work beam, disks rotatable on adjacent ends of the respective bars, pointers carried by said disks, a lever fulcrumed to said work beam, and links connecting said lever to said bars.

A machine of the type set forth comprising a pair of turntables, a post horizontally alined with said turntables, a work beam fulcrumed on said post, a pair of pointers mounted on said work beam and means for adjusting said pointers in unison along the Work beam While maintaining from its fulcrum point and at opposite ends their proportionate distances from the fulto said bars, and means for securing said Crum point of the latter, said means com- Work beam in vertically varied positions on 10 prising a pair of bars slidable in said Work said post.

5 beam, a lever fulcrumed to said Work beam, In testimony whereof I have aiixed my and a pair of links connected at one end to signature. said lever at relatively different distances ANTON BASKY. 

